BIG SKY INSULATIONS INC

Doing business as PREMIER BUILDING SYSTEMS

Belgrade, MT · Interstate · 6 power units · Safety rating: Satisfactory · USDOT since Jun 1, 1974 (52 years)

Review before booking · 1 signal

How risk signals work

Facts from the FMCSA record that call for a closer look. They are not a finding of wrongdoing. Authority and insurance are last known from May 14, 2026.

  • Vehicle out-of-service rate well above the state average42.9% vs Montana average 24.2%.
Confirm on Motus ↗ Call (406) 388-4146 Safety: SAFER ↗
Operating authority
Last known: Active
MC553082: Contract carrier active
Last known · FMCSA snapshot May 14, 2026
Liability insurance (BI&PD)
$750,000
Required minimum: $750,000
No cargo cover filed with FMCSA
Last known · FMCSA snapshot May 14, 2026
Vehicle out-of-service rate
42.9%
3 of 7 vehicle inspections (small sample) · Montana avg 24.2%
FMCSA inspections · Oct 19, 2024 – Oct 19, 2026

Not a live check. FMCSA has not published a Motus record for this carrier, so authority and insurance show the last known status from May 14, 2026. Confirm on Motus ↗ before booking.

Confirm on Motus ↗Call

Operating authority

MC553082 Last known · FMCSA snapshot May 14, 2026

Contract carrier
Contract Carrier
Active
Liability insurance on file$750,000 (required: $750,000)

Last known status. This authority record comes from the FMCSA snapshot of May 14, 2026, the last one published before FMCSA moved registration to Motus. It may have changed since. Confirm current authority: Motus record for USDOT 167812 ↗

Insurance on file

Liability (BI&PD) pays for injury and damage to other people and property; it does not cover the freight. Cargo insurance covers the freight. FMCSA only requires cargo filings from household goods carriers and freight forwarders, so most carriers file none: ask for a cargo certificate that fits your load. No cargo cover filed with FMCSA.

TypeDocketLayerInsurerCoverageEffectiveStatus
Liability (BI&PD)MC553082PrimaryWESTERN NATIONAL MUTUAL INSURANCE CO.
Policy CPP 1307649 · 91X
$750,000Apr 1, 2023Active

Source: Last known · FMCSA snapshot May 14, 2026. Identical filings repeated in the FMCSA data are shown once; a filing listed under two dockets is one policy, not extra coverage. Coverage is the maximum amount filed with FMCSA, not the full policy.

Last known filings. Insurance for this carrier comes from the FMCSA snapshot of May 14, 2026. Policies may have been cancelled or replaced since. Confirm current filings: Motus record ↗ and ask the insurer for a certificate naming you as holder.

Roadside inspections Oct 19, 2024 – Oct 19, 2026

8inspections
42.9%vehicle out-of-service
3 of 7 · Montana avg 24.2%
0.0%driver out-of-service
0 of 8 · Montana avg 4.1%
8violations written on inspection reports
8 most recent inspections
DateStateLevelViolationsOut of service
Aug 12, 2026WY11Yes
May 12, 2026MT10No
May 1, 2026MT21No
Jan 27, 2026MT20No
May 1, 2025MT21Yes
Mar 10, 2025UT12Yes
Dec 16, 2024WY12No
Nov 4, 2024WA31No
How these rates are calculated

Period: Oct 19, 2024 – Oct 19, 2026. Vehicle rate = vehicle inspections with a vehicle out-of-service order ÷ vehicle inspections (levels 1, 2, 5 and 6). Driver rate uses levels 1, 2, 3 and 6. The Montana average covers 4,994 vehicle and 8,417 driver inspections of all Montana-based carriers in this period. It mixes every type of operation, so compare with care; rates based on a handful of inspections say little. FMCSA's own SMS measures are weighted differently: SMS profile ↗ · SAFER snapshot ↗

Violations in FMCSA's SMS last 24 months

7 violations counted in FMCSA's Safety Measurement System (SMS), 3 of them serious enough to put the driver or vehicle out of service.

Why is this different from the 8 violations above?

The inspections section's number counts every violation written on the inspection reports in our Oct 19, 2024 – Oct 19, 2026 window. The SMS count comes from FMCSA's own monthly SMS snapshot, which uses its own 24-month window and only the violations it scores. Both are FMCSA figures; they measure different things.

Category (FMCSA BASIC)ViolationsOut of serviceShareMontana share
Vehicle Maintenance5371.4%78.0%
Hours-of-Service Compliance2028.6%10.2%
6 most frequent violations
ViolationTimesOut of service
Tires - All others leaking or inflation less than 50% of the maximum inflation pressure on tire not equipped with ATIS
Tires · Vehicle Maintenance · code 39375A3TAOL
22
Air Brake - Audible air leak at other than a proper connection
Brakes All Others · Vehicle Maintenance · code 39345DBAAL
11
HOS - False record of duty status driver improper use of Personal Conveyance - Not OOS
False Log · Hours-of-Service Compliance · code 3958E1PC
10
HOS (Property) - Driving more than 11 hours following 10 consecutive hours off duty during the current 8 consecutive day period. Date and Time
Hours · Hours-of-Service Compliance · code 3953A1HOSPD
10
Lighting - Stop lamps - Any inoperative.
Lighting · Vehicle Maintenance · code 3939ALSLI
10
Conspicuity Systems - Trailers upper rear retro reflective sheeting inadequate on vehicle manufactured on or after December 1 1993
Reflective Sheeting · Vehicle Maintenance · code 39311BCSURR
10

Source: FMCSA SMS violation file, inspections in the last 24 months, published Oct 19, 2026. "Share" is this company's mix of violations; the Montana column is the mix across all Montana-based carriers, so you can see which kinds of problems stand out. A high count partly reflects fleet size and how often trucks are inspected.

Crashes Oct 19, 2024 – Oct 19, 2026

No reportable crashes in this period.

Company details FMCSA census · Oct 19, 2026

USDOT number167812
MC / docketMC553082
Legal nameBIG SKY INSULATIONS INC
DBA namePREMIER BUILDING SYSTEMS
OperationInterstate
Business typeCorporation
Power units6
Drivers6
Annual mileage237,506 (2024)
HazmatNo
Safety ratingSatisfactory (Jul 2, 1992)
USDOT number addedJun 1, 1974 · 52 years ago
Last MCS-150 updateJan 16, 2025

Cargo carried

General FreightLogs, Poles, Beams, LumberBuilding MaterialsConstructionOtherInsulation

Change history

No changes to name, contact details, authority or insurance since we started tracking on Oct 18, 2026. We compare every company's FMCSA record each day.

to see it on your watchlist when something changes.

Questions about BIG SKY INSULATIONS INC

What does BIG SKY INSULATIONS INC's operating authority allow?

MC553082: Contract carrier (may haul regulated property for hire under continuing contracts with specific shippers).

Which information about BIG SKY INSULATIONS INC is old or missing?

Operating authority is the last known status from the FMCSA snapshot of May 14, 2026, not a current check. Insurance filings are from the same May 14, 2026 snapshot.

What should I verify before booking BIG SKY INSULATIONS INC?

Confirm the authority and insurance on the Motus record for USDOT 167812. Call the company back on the phone number on file, (406) 388-4146, not a number from an email or load board message. Check that the MC number the dispatcher gave you matches MC553082, and ask the insurer for a certificate of insurance naming you as holder, with cargo coverage that fits your load.

Company details from the FMCSA Company Census File (Oct 19, 2026). Inspections and crashes from FMCSA MCMIS files. About our data · Report an error on this page (how corrections work).

Page generated 2026-10-19 18:37 UTC.